what’s the deal with december 21, 2012b04d33ea-fa5b-46e6-9a41... · breaking the maya code –...
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© 2012 Math Activity – Dr. Selina Váquez Mireles Center for Mathematics Readiness – Texas State University – San Marcos
Last Updated: 01/06/2012
What’s the deal with December 21, 2012?
2012 video clip
Discuss the development of the modern calendar
Cycles
Early Roman calendar
Julian Calendar
Gregorian calendar
Discuss the Mayan Calendar
“What is so special about the Mayan Calendar?” – Carl Johan Calleman
Breaking the Maya Code – Michael Coe
Identifies a day by counting the number of days passed
since a mythical creation date that corresponds to August
11, 3114 BCE in the Gregorian Calendar
Non – repeating, vigesimal (base-20) & base – 18
Make note of questions you still have and ask them.
Discuss study methods, problem solving strategies,
reading strategies that you used. How did you stay
on task and motivated. What distracted you?
Zero
Number Systems
Conversion
Bases & place value
Internet article: II.A.5 analyze textual information critically
II.A.8 connect reading to historical and current events
II.A.7 Adapt reading strategies according
to structure of text
II.B.2 Write in a variety of forms for various
audiences and purposes
II.E.
Technology
I.D.1. Self-
monitor/see
k assistance
I.D. Use study
habits/self-
monitor/persevere
.